At Liverpool Harriers, Katarina began working with Mike Holmes, whose guidance helped her rise in the senior ranks. Holmes led her to notable achievements, including World Youth and European Under-23 heptathlon titles, and a World Junior long jump gold in 2012. At just 19, KJT competed in the London Olympics, finishing 15th. Though the result wasn’t all she had hoped for, she went on to claim a European Indoor Pentathlon title and a fifth-place finish at the 2013 World Championships in Moscow.
A turning point came in 2016 when Katarina moved to France aged 23, seeking further success under a new team. She worked with Jean-Yves Cochand, who, along with coaches Bertrand Valcin and Bruno Gajer, transformed her training. Cochand focused on refining her techniques in shot put and javelin, adjusted her jump run-ups, and emphasised smaller, more frequent sessions. The new approach led to multiple World, European, and Commonwealth medals, as well as British records in the heptathlon and pentathlon. During this time, she also set a World Record in the heptathlon high jump.
As Cochand moved toward retirement, Katarina transitioned to training with Bruno Gajer who worked with her on her 800m, and Bertrand Valcin, who was already known for coaching decathlete Kevin Mayer. Valcin’s patience and belief in Katarina played a crucial role in her comeback after the 2016 Olympics. Under Valcin’s guidance, she claimed gold at the 2019 World Championships in Doha and also won gold at the World Indoors, European Indoors, and Commonwealth Games. Valcin helped Katarina become a world champion and a contender for Olympic success.
Now based in Loughborough, Katarina works with Aston Moore, who began coaching her in 2023. Moore’s challenge has been helping Katarina recover from an Achilles rupture in her left leg that impacted her long jump ability, while strengthening her throwing events and instilling a sense of calm and focus. The culmination of this was winning a second World Championships title in Budapest in 2023 and a Silver medal at the Paris 2024 Olympics under Moore’s mentorship and guidance.